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YMC-Pack ODS-AM

ODS-AM is a high carbon load C18 packing that is similar in selectivity to ODS-A. The major difference between these bonded phases is that ODS-AM has extremely tight specification criteria which provides excellent peak shape and more reproducible separation.

SPECIFICATION

Particle size : 3µm, 5µm
Pore size : 120Å
Carbon contents : 17%
Usable pH range : 2.0-7.5

POINT

  • Excellent peak symmetry: Virtually no residual silanol activity
  • Selectivity similar to ODS-A

APPLICATION DATA



Long-term reproducibility

Long-term reproducibility

This figure shows the plot of separation factor(α) of methyl paraben/2,6-dimethylpyridine for past ten lots of ODS-AM. The rigorous quality control system applied by YMC minimizes the difference between each lot and provides high reproducibility for the separation of basic compounds.

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Coordination compounds

Coordination compounds

Metallic contaminants with the base silica cause significant tailing of coordination compounds such as 8-quinolinols or acetylacetones. ODS-AM provides chromatographers excellent peak shape because YMC controls the distribution level of metallic contaminants in the silica gel to keep it to a minimum.

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